Silent but deadly

A creeper, a floating air bisquit. A fart that can not be heard but can sure as hell be smelt. This type of flatulent sneaks up on you and unless there is a breeze, hard to tell who it came from. Don't ever recognize this type of fart out loud otherwise you fall into the rule of: "Whoever smelt it delt it"

"Dayum, someone done let loose a silent but deadly"

by D. Ferrel September 29, 2003

Silent but deadly

A fart that is not heard, but smells so horrid that it could kill; also: Silent but violent, SBD

Your farts aren't that bad when compared to Grandpappie's ol' silent but deadlies.

by King Shit January 16, 2003

Silent but Deadly

when your fart is silent but smells like complete shit - maria yacovelli

Ooh that one was silent but deadly .

by Sara lobsterface July 11, 2017

Silent but Deadly

When you thought you ripped a good one, but it ended up being silent, and smelled terrible.

Person 1: *Farts Silently*
Person 2: Do smell that?
Person 3: Eww! Person 1 ripped a Silent but Deadly!

by AFZFilms November 17, 2018

silent night deadly night

1.n. A classic old school horror movie about a killer dressed as santa claus.

1. Lizloo and I are going to get some popcorn and watch silent night deadly night...then fuck.

by B Brian Blair March 30, 2008

Silent but deadly fap

A gap in which you have to silently masterbation while in the same room as someone else without getting caught

Person A "hey what were you up to last night?"
Person B "I was doing the silent but deadly fap challenge, how about you?"

by Wanna date? November 10, 2019

Silent but deadly asf

A fart that is silent but it smells very bad.

12345?
54321?
Silent but deadly asf

by SilentPlaysIsGhey June 17, 2019